基于区块链技术的数字化档案信息隐私保护算法  

Digital Archive Information Privacy Protection Algorithm Based on Blockchain Technology

作　　者：王新尧 彭飞 WANG Xinyao;PENG Fei(Information Center,Renji Hospital Shanghai JiaoTong University School of Medicine,Shanghai 200127,China)

机构地区：[1]上海交通大学医学院附属仁济医院信息中心,上海200127

出　　处：《吉林大学学报(信息科学版)》2025年第1期166-172,共7页Journal of Jilin University(Information Science Edition)

基　　金：上海申康医院发展中心临床科技创新基金资助项目(SHDC2015603)。

摘　　要：针对目前基于区块链技术的档案隐私保护算法存在保护效果不佳、操作时间长等问题,提出了基于区块链技术的数字化档案信息隐私保护算法。首先,将区块链技术应用于数字化档案信息隐私保护,数据拥有者使用对称加密算法对数字化档案信息实施加密,并将其上传至私有链;同时,生成数字化档案信息的安全索引,将其上传至联盟链;数据使用者生成待查询关键字查询门限,发送至私有链,在私有链上获取查询结果并发送至联盟链,联盟链与私有链合作,验证查询结果的正确性,若正确,则联盟链将转换后的加密数据发送给数据使用者。实验结果表明,所提方法的数字化档案信息隐私保护算法隐私保护效果佳、实际应用效果好。The era of big data has arrived,and the digitization of archive information is the future development trend.How to protect the privacy of digital archive information is a key research topic in the computer field.At present,the archive privacy protection algorithm based on blockchain technology has problems such as poor protection effect and long operation time.In order to solve the problems existing in traditional methods,a digital archive information privacy protection algorithm based on blockchain technology is proposed.Firstly,apply blockchain technology to the privacy protection process of digital archive information.The specific protection process is as follows:the data owner uses symmetric encryption algorithms to encrypt the digital archive information and upload it to the private chain;At the same time,generate a secure index of digital archive information and upload it to the alliance chain;The data user generates a query threshold for the keywords to be queried,sends it to the private chain,obtains the query results on the private chain,and sends them to the alliance chain.The alliance chain cooperates with the private chain to verify the correctness of the query results.If it is correct,the alliance chain will send the converted encrypted data to the data user.The experimental results show that the privacy protection algorithm for digital archive information of the proposed method has good privacy protection effect and practical application effect.

关 键 词：数字化档案信息 区块链技术 隐私保护算法 对称加密算法 安全索引结构 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]